Moments of resilience, courage and even joy visible on the faces of Syrian refugee children

Syrian refugee children play in the Zaatari refugee camp in Jordan on Jan. 31, 2013.

More than half the 642,000 refugees from the Syrian conflict flooding into neighboring countries are children, according to the United Nations. It's tempting to find hope in these portraits of children at the Zaatari camp in Jordan, to see resilience and courage instead of emotional scarring, but the words of a senior U.N. official, remind us that this may not be the case.

"This is a children's refugee crisis. It's heartbreaking when we see these children arriving and particularly what we see in the days that follow. Many of them are withdrawn, we hear from the parents about bedwetting. These children have experienced and witnessed some of the most horrific scenes, seeing their parents or loved ones killed, their homes destroyed, their schools effected," said Panos Moumtzis, the U.N. Refugee Agency regional coordinator for Syrian refugees.